[IGSREPORT-17573] Wk 1537 IGS Final Orbits

Jim Ray IGS.ACC at noaa.gov
Thu Jul 9 04:50:41 PDT 2009


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IGS Electronic Report   09 Jul 04:51:04 PDT 2009      Message Number 17573
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Author:  AC Coordinator / NOAA NGS

sum-file Version 2.0
Final IGS Orbit Combination - Week 1537   (Jun 21, 2009 - Jun 27, 2009)

Contacts: J. Ray       (jim.ray at noaa.gov),
          J. Griffiths (jake.griffiths at noaa.gov)


COMBINATION STRATEGY:
---------------------

Starting with GPS week 860, the IGS Final orbit combination is done directly
in the ITRF without any alignment to the Bulletin B EOP series.

Each centre satellite clock corrections are first transformed to a common 
reference. One of the following two methods can be used (the REMARKS section of
this report gives which method is used):
[1] For each centre, a clock offset and a drift are estimated with respect to
    the broadcast clock corrections using only non-SA satellites;
[2] A chosen reference centre is aligned to the broadcast clock corrections
    using all satellites. All other centres are then aligned to that reference
    centre. 
The offsets and drifts are used to align each centre satellite clock
corrections to GPS time. Ephemerides and clock corrections are then combined
as weighted averages computed over all centres. Each centre is given a
position weight and a clock weight. The position weights are computed from
each centre's absolute deviation to the unweighted average orbit after the
estimation of a 7-parameter Helmert transformation. The clock weights are
either computed from [1] the absolute deviation of the initial alignment to
broadcast clock for the non-SA satellites, or [2] from the absolute deviation
of centre's aligned clock corrections with respect to the unweighted mean.
Finally, a 7-parameter Helmert transformation and clock offset and drift are
estimated for each centre with respect to the combined solutions and parameters
and RMS of fit reported. All the above estimations are performed using the
L1-norm robust scheme.

  Each centre ephemerides are also evaluated individually and independently from
the orbit combination by using week long arcs. The Earth Orientation Parameters
(EOP) used in this evaluation are those submitted by the respective centres.
The IGS combined orbits/clocks and all centres providing both orbit and clock 
solutions are further evaluated by an independent point positioning (navigation)
program that uses both phase and pseudorange data. This is primarily intended 
for testing clock solution precision as well as the orbit/clock consistency.

 Like the clock solutions broadcast in the navigation message, the combined
satellite clocks are corrected for the periodical relativistic correction (see
e.g. GPS interface Control document ICD-GPS-200, p.73):

                              -2*(X.V)/c  [distance unit],

where X and V are the inertial sv state and velocity vectors and c is the speed
of light. Also for compatibility, no satellite L1/L2 delay calibration should be
applied.


SOFTWARE:
---------

The weighted average software used was originally developed by T. Springer
and G. Beutler in 1993. The GPS long arc orbit analysis software used here for
individual centre ephemeris evaluation was developed by Beutler et al. at the
Astronomical Institute of the University of Bern (AIUB). For more details on
the orbit combination and complete references for both software see:

  Beutler G., Kouba J. and T. Springer, 1995, Combining the orbits of the IGS 
  Analysis Centers, Bulletin Geodesique, 69, pp 200-222.

  Kouba J., Mireault Y. and F. Lahaye, 1995, 1994 IGS Orbit/Clock Combination
  and Evaluation, Appendix I of the Analysis Coordinator Report, International
  GPS Service for Geodynamics (IGS) 1994 Annual Report, pp. 70-94.

  Kouba J. and Y. Mireault, 1996, IGS Analysis Coordinator Report, 
  International GPS Service for Geodynamics (IGS) 1995 Annual Report, 
  pp. 45-76.

  Kouba J. and Y. Mireault, 1997, Analysis Coordinator Report, 
  International GPS Service for Geodynamics (IGS) 1996 Annual Report, 
  pp. 55-100.


PRODUCTS GENERATED:
-------------------

The resulting average ephemeris and clocks are output to daily files in SP3
format. The satellite accuracy codes displayed in the header are based on the
weighted RMS for each satellite. Note that each file contains all the
satellites that appear in any of the centre ephemeris files. If a satellite or
centre was excluded from combination, a note in the REMARKS section of this
report will identify the exclusion and the reason.

  The resulting x and y earth rotation parameters (ERP) associated with the IGS
ephemeris files and their rates (xrt, yrt) are computed using a weighted average
of all available centres (weights are those from the orbit combination). 
Pole rate combination uses only centres providing estimated pole rates.

  Starting with GPS wk 0894, IGS LOD combinations were implemented in the 
Final IGS solutions.  AC LOD biases with respect to Bulletin A are estimated
using Bulletin A most recent 3 weeks (21 days), i.e. up to 5 days prior to
the last non-predicted day of Bulletin A.  AC LOD biases are removed and the
new AC bias-free LODs are used to compute a weighted IGS LOD which in turn
is integrated into IGS UT1-UTC. The starting UT1-UTC value is chosen as
Bulletin A fifth day prior to its last non-predicted day. Both IGS LOD and 
UT1-UTC values are printed in the IGS Final erp file.



The Final Orbit files generated and uploaded into CDDIS @ NASA/GSFC are:

igs1537[0-6].sp3  IGS GPS ephemeris files in SP3 format.
igs1537[0-6].clk  IGS GPS satellite and station clocks in SP3 format.
igs1537[0-6].cls  IGS GPS clock combination summary report.
igs15377.erp      Earth Rotation Parameters (ERP) and their rates as well as
                  Universal Time (UT1-UTC) and Length Of Day (LOD) associated 
                  with IGS ephemerides.
igs15377.sum      Complete report.

    
REMARKS concerning the IGS Orbit Combination:                                  
---------------------------------------------

 1. The centres used in the clock combination are COD, EMR, ESA, GFZ, MIT, and
    JPL. The other centres are excluded because they either provide broadcast
    clocks (NGS) or clock corrections are not provided (SIO).  The clock
    information not used is still compared to combination for completeness.  
    The value of 999999.999999 microseconds, according to the sp3 format 
    convention, is used to signify that no clock solution is available and 
    therefore must not be used.

 2. Rapid (IGR) orbits/clocks are included in the combination for statistics only.
    Starting week 1478, a new solution from CNES/GRGS (GRG) is included for
    evaluation and statistics only.

 3. The following centre clock solutions, which provide broadcast clock
    corrections, were excluded from the combination but kept in the combination
    statistics:
             -> Centre: NGS 

 4. The following clock solutions were excluded from the combination because they
    were biasing the combined clock solutions (clock shifts/outliers) but were
    kept for the RMS computation.  Duplicate entries can arise due to separate
    combination runs for the 30-s clocks ACs (listed first) and the 5-min clock
    ACs (listed second).
    
               Day | Centre | PRN/STA list
               ----+--------+---------------
                0  |  COD   | YELL YELL
                0  |  EMR   | 10 32 10 32 MIZU WTZR
                0  |  ESA   | MIZU
                0  |  GFZ   | 32 BAN2 FAA1
                0  |  GRG   | ONSA TWTF
                0  |  JPL   | 10 UNSA
                0  |  MIT   | 19 19 DRAO HOB2
                1  |  ALL   | 1 1
                1  |  COD   | MATE
                1  |  EMR   | 10 32 10 32 WTZR
                1  |  ESA   | SSIA
                1  |  GFZ   | 7 15 32 AUCK CHUR FAA1 UNSA
                1  |  GRG   | ONSA
                1  |  JPL   | 10 32 FLIN
                1  |  MIT   | FLIN OUS2 SYOG
                2  |  ALL   | 1 1 32
                2  |  COD   | SCH2 SCH2
                2  |  EMR   | 10 10 MIZU
                2  |  ESA   | UNSA
                2  |  GFZ   | 7 15 HARB
                2  |  GRG   | ONSA
                2  |  JPL   | 10
                2  |  MIT   | MATE
                3  |  EMR   | 10 32 10 32 MIZU WTZR
                3  |  GFZ   | 7 15 32 AUCK CHUR FAA1 UNSA
                3  |  GRG   | ONSA
                3  |  JPL   | 10
                3  |  MIT   | HOB2
                4  |  EMR   | 32 32 MIZU WTZR
                4  |  GFZ   | 7 15 32 AUCK CHUR
                4  |  GRG   | ONSA
                4  |  JPL   | 10
                4  |  MIT   | 15 29 15 29 AMC2 HYDE
                4  |  NGS   | 1
                5  |  ALL   | 1 1 25
                5  |  COD   | MATE
                5  |  EMR   | 32 32 WTZR
                5  |  ESA   | 32
                5  |  GFZ   | 7 15 AUCK BOR1 CHUR GRAZ HYDE KIRU MATE NYA1 ONSA
                5  |  GRG   | DAV1 ONSA TWTF
                5  |  JPL   | 32 DAV1 KERG
                5  |  MIT   | BUE1 KERG TWTF
                6  |  EMR   | 32 32 MIZU WTZR
                6  |  ESA   | 26 32 UNSA
                6  |  GFZ   | 7 15 26 32 AUCK CHUR HOFN
                6  |  GRG   | ONSA TWTF
                6  |  JPL   | 10 32 HARB
                6  |  MIT   | 12 19 25 26 12 19 25 26 HOB2
                6  |  NGS   | 1

 5. Starting on 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) all IGS products,
    including the IGS combined orbits, are based on the IGS realization of the
    ITRF2005 reference frame (IGS05).   For more information see IGSMAIL #5447.

 6. Small rotations were applied to the all AC orbit and ERP values in order
    to align them to the IGS05. These rotations were estimated in the process
    of the IGS SINEX combination, performed at NRCan by Remi Ferland, are based 
    on the common stations between the individual AC SINEX solutions and the 
    IGS05.snx SINEX. The estimated 7 transformations, from which only 
    the 3 rotations are applied to the orbit and ERP values, are:
    
            |    DX     DY     DZ      RX     RY     RZ     SCL
     Centre |   [mm]   [mm]   [mm]   [uas]  [uas]  [uas]   [ppb]
     -------+---------------------------------------------------
       COD  |     .8     .6     .4     -19    -23    -13    -.07
       EMR  |   10.7   -7.7  -12.1      58     29     69    -.20
       ESA  |    5.7   -1.9   10.8      -3    -25      9     .11
       GFZ  |     .4     .7    1.0       0     -4      1    -.21
       GRG  |    9.0   -1.8    1.6     -32    -13     -3     .07
       JPL  |    4.2   -2.1  -11.1      -3     -1      3     .13
       MIT  |    6.8   -3.6    5.9       1     18    -28    -.25
       NGS  |   12.5   -7.8    4.3     -93   -149    -11    -.10
       SIO  |    3.4   -4.3  -19.9     -67   -138     10     .18


 7. Starting on 22-Oct-2000 (GPS Week 1085-0; mjd=51839) all IGS clock products
    are based on the new  clock combination  scheme which uses  the clock RINEX
    files as input if available, otherwise SP3 clocks are used. 
    The navigation solution is still based on the SP3 clocks but this will soon
    adopt the clock RINEX files as well.

 8. Starting on 27-Feb-2000 (GPS Week 1051-0; MJD 51601) the IGS final products
    are aligned to the IGS reference frame products (station coordinates and
    ERPs as generated by NRCan. For more information see IGSMAIL #2750.
    Because of this  change in alignment Table 2 has been enhanced with one 
    additional line per AC. This additional line shows the X- and Y-rotations 
    which were applied to each of the AC orbits prior to the orbit combination. 
    These rotations are based on the difference between the individual AC ERP 
    estimates and the IGS reference frame ERP product. The total rotation of
    the individual AC orbits w.r.t. the IGS combined orbit is the sum of the
    values in the two lines of Table 2 plus the reference frame rotation.

 9. Starting on 5-Nov-2006 (GPS Week 1400, day 0, MJD 54044) the absolute antenna
    model is introduced (IGSMAIL #5272). The antenna phase center offsets and
    phase center variations are given in the file:
        ftp://igscb.jpl.nasa.gov/pub/station/general/igs05.atx

    
ORBIT COMBINATION AND EVALUATION STATISTICS:                                    
--------------------------------------------                                    
      
Most combination statistics are with respect to the  combined orbits and
consist of five parts. The first, Table 1, summarizes all statistics for
the week.  It contains  means and standard deviations  over the week  of
satellite ephemeris and  clock correction transformation parameters  for
each centre (table 1.1537.a). It also displays the computed satellite
position sigmas for the combined orbits (table 1.1537.b).
The second part, Table 2, contains the complete ephemeris and clock
correction transformation parameters (includes both the apriori and a
posteriori values) for each centre and each day (tables 2.1537.[0-6]).
The third part, Table 3, contains two types of daily RMS for each satellite
and centre, along with the computed satellite position sigmas for the
combined orbits (tables 3.1537.[0-6]). The first type of satellite RMS is
based on orbit combination and the second RMS type is a result of the 7-day
arc evaluation of each centre ephemerides. The fourth part, Table 4, is a
weekly summary of the daily precise navigation summaries for centres
providing both orbit and clock solutions.  It contains weekly station RMS
w.r.t. the initial coordinates for the Latitude, Longitude and Height 
components for up to three IGS stations (table 4.1307). The fifth and final
part, Table 5, is similar to Table 4 and contains daily precise navigation
statistics (tables 5.1537.0-6).

In tables 1-3, the most important statistic which is meaningful for intra
centre/satellite analysis is labeled WRMS. It is a weighted RMS where
normalized weights are based on accuracy codes given in the SP3 files, and
should not be affected by downweighted/problem satellites when acknowledged
by individual centres in their SP3 file.
                                                                               

             
Table 1: Week 1537 summary.                       (Jun 21, 2009 - Jun 27, 2009)

Table 1.1537.a   GPS week: 1537   MJD: 55003.000-55009.000

         Mean and standard deviations of transformation parameters to the 
         combined IGS orbit.
         WRMS - orbit RMS weighted by the SP3 header accuracy codes.
         STA  - Mean number of stations in the daily solutions.
   
CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  236|    0     0     0   -13   -10   -20  -.13    9    8 |    -229    -623     16     75
        |    0     0     1    12    16    22   .02           |     323     480
emr   76|    2     0    -5  -121   -84   -10   .38   18   18 |    2753    -664     20    110
        |    1     2     2    26    28    20   .03           |    1386    1287
esa  126|    1     0     3   -34   -21   -24   .32    9    9 |   -1970    1065     19    115
        |    0     0     1     9    14    21   .02           |    1362    2220
gfz  192|    0     0     4   -35   -60    82  -.12   10   10 |       1      74     23    129
        |    0     0     1    14    18    39   .03           |     303     451
grg  108|    3     0    -1   -10     9   -27  1.05   37   35 |      73    -228     84    212
        |    1     2     3    15    21    88   .07           |     159     335
igr  n/a|    0     0     0   -17   -55   -19   .04    5    5 |   22802    -501     20     71
        |    0     0     0    13    20    37   .02           |    1637    1515
jpl  129|    0     0   -10   -39   -55    23   .56   17   16 |    2702    -650     17     97
        |    0     0     2    15    17    18   .04           |    1885    1435
mit  260|    0     0     0   -20   -98   -21  -.21   10   10 |  -10968     305     21    160
        |    1     0     1    32    21    14   .02           |    7402     816
ngs  218|    0     0     0   165   240   -26  -.26   12    9 |    6308    5039   2207   3723
        |    1     0     2    33    29    15   .04           |    5099    5352
sio  260|   -3     1     1   137   210   -19  -.16   18   18 |     ---     ---    ---    ---
        |    0     0     1    28    24    19   .03           |     ---     ---


Table 1.1537.b   GPS week : 1537   MJD: 55003.000-55009.000   

         Satellite position sigmas for the combined orbits
         (coded in the IGS SP3 orbit files).
         "E" flags eclipsing satellites.
         Units: mm.

              Day of GPS week
 PRN  |    0    1    2    3    4    5    6 |  Remarks
------+------------------------------------+------------------------------------------
   1  |    0   13   16    0   10   16   16 |
   2  |    6    6    5    6    5    5    6 |
   3  |    4    3    3    3    3    4    5 |
   4  |    4    4    3    4    4    3    4 |
   6  |    4    3    3    3    3    4    5 |
   7  |    5    5    5    4    5    4    5 |
   8  |    5    4    4    4    5    5    6 |
   9  |    4    4    4    4    4    4    5 |
  10  |    6    5    5    6    6    6    7 |
  11  |    5    5    4    4    4    4    4 |
  12  |    5    6    5    5    5    5    7 |
  13  |    5    5    5    4    5    4    5 |
  14  |    4    5    5    5    4    4    5 |
  15  |    5    5    5    5    5    5    5 |
  16  |    5    5    5    5    5    5    5 |
  17  |    6    6    6    5    5    6    6 |
  18  |    5    5    4    4    5    4    5 |
  19  |    4    5    4    4    4    4    5 |
  20  |    4    5    4    5    4    4    5 |
  21  |    5    5    4    4    5    4    5 |
  22  |    4    4    4    3    4    3    4 |
  23  |    5    5    5    5    5    5    6 |
  24  |    4    4    4    4    4    3    4 |
  25  |    4    4    5    5    5    6    7 |
  26  |    4    4    4    4    4    4    4 |
  27  |    4    4    4    4    4    4    4 |
  28  |    5    4    4    4    5    5    6 |
  29  |    6    6    5    5    6    6    5 |
  30  |    5    5    5    5    6    5    7 |
  31  |    5    5    5    4    5    4    5 |
  32  |    6    5    5    6    5    7    6 |



Table 2: Daily transformation of each centre to the combined IGS orbit and
         clocks for each day of the week. The transformation displayed is the
         sum of a priori and estimated transformations.
         WRMS - RMS weighted by the centres SP3 header accuracy codes.
         STA  - Number of stations in the daily solutions.
   
Table 2.1537.0   GPS week: 1537   Day: 0   MJD: 55003.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  236|    1     0     0     0   -27    -5  -.13    7    7 |    -353    -548     18     59
        |                     16    -6                       |
emr   76|    1     0    -3  -134  -117     7   .35   17   17 |    4599    -284     19     84
        |                     -1   -19                       |
esa  126|    0    -1     1   -44   -24     4   .34   10   10 |   -3474    4054     21    104
        |                     -9    41                       |
gfz  192|    0     0     5   -44   -91    53  -.09    9    9 |     -29     -98     22     88
        |                     10     3                       |
grg  108|    3     0    -6     3     2   -84  1.11   35   32 |       3       2     81    223
        |                    -57    38                       |
igr  n/a|   -1     0     0   -11   -75    17   .02    5    5 |   24853    -126     21     61
        |                    -40    36                       |
jpl  129|   -1     0   -11   -55   -71     2   .58   16   15 |    5276    -310     15     78
        |                     80    46                       |
mit  260|    0     0     1   -20   -84   -16  -.21   13   13 |     -63      47     27    132
        |                      9    28                       |
ngs  218|    0     0     0   174   266   -33  -.30   11    7 |    -334    -609   2374   3862
        |                     56   -24                       |
sio  260|   -2     1     0   127   197   -10  -.12   17   16 |     ---     ---    ---    ---
        |                    -93  -100                       |

Table 2.1537.1   GPS week: 1537   Day: 1   MJD: 55004.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  236|    0     0     0     1   -25     1  -.15    8    8 |       4    -778     12     59
        |                     27    23                       |
emr   76|    3    -1    -2  -154  -113    -5   .41   16   16 |    4700   -2123     18     91
        |                     35   -16                       |
esa  126|    0    -1     1   -47     5   -59   .32    9    9 |   -1493    1915     20    117
        |                     -2   -13                       |
gfz  192|    0     0     4   -37   -61   134  -.14    9    9 |     -11     492     23    129
        |                     30    33                       |
grg  108|    3    -3     0   -36    -8   -13  1.01   39   37 |      67     422     89    209
        |                      2    73                       |
igr  n/a|    0     0     0   -14   -77   -14   .02    6    6 |   25232   -2323     20     64
        |                    -22    27                       |
jpl  129|    0     0    -7   -56   -82    38   .58   16   15 |    5263   -2310     18    107
        |                     20    40                       |
mit  260|   -2     0     0    15   -62   -42  -.24   12   12 |  -15348     939     20    154
        |                     11    33                       |
ngs  218|    0     0    -2   152   202   -53  -.31   13    9 |   13335     330   2308   3828
        |                     11     8                       |
sio  260|   -3     1     0   161   254   -50  -.15   18   18 |     ---     ---    ---    ---
        |                    -98  -117                       |

Table 2.1537.2   GPS week: 1537   Day: 2   MJD: 55005.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  236|    0     0     1   -25    -9     6  -.14    8    7 |     300   -1213     15     96
        |                     48    -4                       |
emr   76|    4    -3    -4  -141  -106    -5   .37   17   17 |    2936   -2384     21    132
        |                     32   -14                       |
esa  126|    1     0     1   -36   -18   -33   .32    9    9 |   -1889    -421     20    127
        |                     30    11                       |
gfz  192|    0     0     2   -30   -61    48  -.11   10   10 |     390    -359     23    165
        |                     16    10                       |
grg  108|    3     1     0    -3    26   121   .95   36   36 |     274    -469     77    203
        |                     21    23                       |
igr  n/a|    0     0    -1   -35   -44   -25   .04    5    5 |   23057   -2532     21     78
        |                     -5   -15                       |
jpl  129|    0     0    -8   -46   -56    25   .61   17   16 |    3145   -2596     18    105
        |                     -3   -34                       |
mit  260|   -1     0     1     9   -98    -7  -.20   10   10 |  -15139    1678     21    224
        |                      3    27                       |
ngs  218|    0     0    -2   111   202   -26  -.26   11    7 |    5358   10446   2458   3760
        |                     69    -8                       |
sio  260|   -3     2     1   164   212   -10  -.15   17   19 |     ---     ---    ---    ---
        |                   -107  -106                       |

Table 2.1537.3   GPS week: 1537   Day: 3   MJD: 55006.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  236|    0     0    -1   -24     5   -20  -.12    8    8 |     -85   -1130     20     69
        |                     43    10                       |
emr   76|    1     0    -6  -104   -57    17   .42   18   18 |    1585     139     21    113
        |                    -18   -51                       |
esa  126|    1     0     6   -23   -36   -29   .31    9    9 |   -3175     706     20    122
        |                     25    23                       |
gfz  192|    0     0     5   -57   -36    79  -.12   10   10 |       9     -36     24    117
        |                     34   -12                       |
grg  108|    5     3    -1   -13    44   -21  1.13   38   34 |     -12    -282     86    221
        |                     -3     8                       |
igr  n/a|    0     0     0   -29   -23   -36   .08    5    5 |   21417     -26     19     76
        |                     -3   -12                       |
jpl  129|    0     1   -13   -39   -30     0   .58   17   16 |    1501    -212     17     88
        |                    -34    -3                       |
mit  260|    0     0     0    -6  -126   -10  -.19    8    7 |    -209     118     21    140
        |                      2    49                       |
ngs  218|    0    -1     0   152   260   -33  -.27   12    8 |    -106   -1134   2128   3801
        |                     13   -69                       |
sio  260|   -4     1     1   142   180   -20  -.11   17   19 |     ---     ---    ---    ---
        |                   -103   -95                       |

Table 2.1537.4   GPS week: 1537   Day: 4   MJD: 55007.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  236|    0     0    -1   -24    13   -46  -.11    9    9 |    -307    -637     19     91
        |                     64   -10                       |
emr   76|    2     2    -6  -128   -45   -33   .38   19   19 |    1798     110     27    152
        |                     16   -34                       |
esa  126|    0    -1     3   -35   -37   -34   .33    9    9 |   -1214     544     22    113
        |                      0    36                       |
gfz  192|    1     0     3   -42   -75   103  -.10    9    9 |     -58     442     26    137
        |                     39    11                       |
grg  108|    0     0     0    -8     5   -88  1.04   37   35 |     318    -412     87    211
        |                      0   -10                       |
igr  n/a|    0     0     0    -9   -43    -1   .05    5    5 |   21324     505     22     85
        |                    -48     6                       |
jpl  129|    1     0   -12   -33   -40    53   .55   16   15 |    1051     321     19    105
        |                     18    79                       |
mit  260|    0    -1     0   -13  -117   -34  -.21    8    7 |  -15652    -690     22    180
        |                     21    41                       |
ngs  218|    0     0     0   160   273    -9  -.22   12    9 |   10051    7056   1869   3764
        |                    -54   -68                       |
sio  260|   -3     1     2   158   190    -4  -.19   18   19 |     ---     ---    ---    ---
        |                    -96  -106                       |

Table 2.1537.5   GPS week: 1537   Day: 5   MJD: 55008.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  236|    0     0    -1   -19    -6   -33  -.10    9    9 |    -621    -177     15     80
        |                     28    27                       |
emr   76|    1     1    -7  -109   -78   -13   .39   20   18 |    2232   -1224     20    119
        |                    -10   -17                       |
esa  126|    2     0     4   -20   -13    -4   .33    8    8 |     407   -2519     17    112
        |                     21    36                       |
gfz  192|    0     0     3   -14   -45    34  -.12    9    9 |    -568     624     22    143
        |                     -8    28                       |
grg  108|    1     0     2   -24    12    37  1.01   38   36 |     -80    -539     87    213
        |                    -45    57                       |
igr  n/a|    0     0     0   -22   -49    15   .03    5    5 |   22025    -726     19     72
        |                    -32     6                       |
jpl  129|    0     1   -11   -29   -56    23   .53   17   16 |    1529    -921     16    104
        |                     31    50                       |
mit  260|    0    -1     0   -53  -107    -8  -.22   10    8 |  -15358    -459     17    154
        |                     26    32                       |
ngs  218|   -2     0     2   187   236    -6  -.23   12    9 |    7145   11158   2251   3806
        |                    -66   -66                       |
sio  260|   -3     1     1   124   205     2  -.17   19   18 |     ---     ---    ---    ---
        |                    -91  -112                       |

Table 2.1537.6   GPS week: 1537   Day: 6   MJD: 55009.000                            

CENT STA|   DX    DY    DZ    RX    RY    RZ   SCL  RMS  WRMS|    TOFT   TDRFT   SDEV    RMS
        |  [mm]  [mm]  [mm] [uas] [uas] [uas] [ppb] [mm] [mm]|    [ps]  [ps/d]   [ps]   [ps]
--------+----------------------------------------------------+------------------------------
cod  236|    0     0     0    -2   -24   -47  -.16   11    9 |    -544     120     17     72
        |                     37    31                       |
emr   76|    4     2    -8   -77   -69   -41   .33   19   19 |    1426    1112     18     81
        |                    -53   -10                       |
esa  126|    1     0     3   -32   -25   -12   .29    9    9 |   -2957    3179     18    110
        |                     30    77                       |
gfz  192|    0     0     6   -23   -51   127  -.16   11   11 |     274    -543     23    124
        |                    -12    46                       |
grg  108|    4    -1    -4     6   -19  -141  1.11   37   36 |     -55    -318     86    208
        |                    -54    65                       |
igr  n/a|   -1     0     1     3   -75   -91   .04    5    5 |   21708    1716     20     67
        |                    -43    48                       |
jpl  129|   -1     0   -10   -14   -53    20   .49   17   16 |    1151    1472     17     96
        |                      6    25                       |
mit  260|    1    -1     0   -73   -92   -33  -.23   12   10 |  -15009     507     22    136
        |                     23    15                       |
ngs  218|   -1     0     3   221   243   -24  -.24   15   15 |    8712    8030   2063   3240
        |                   -171   -57                       |
sio  260|   -3     0     0    84   229   -39  -.18   20   19 |     ---     ---    ---    ---
        |                    -85  -124                       |

       
       
Table 3: Daily fit for each satellite and each centre resulting from weighted
         average combination and from long arc orbit dynamics (7-day). The
         first IGS column gives resulting satellite accuracy measures found in
         SP3 header. The last IGS column gives the RMS fit of the IGS orbit
         when processed through the 7-day arc evaluation.

         "E"    stands for eclipsing satellites (earth).
         "M"    stands for eclipsing satellites (moon).
         "X"    stands for excluded from the statistics but included in IGS orbit.
         "T"    stands for Total long arc orbit RMS for all satellites.
         "NE"   stands for long arc orbit RMS for Non-Eclipsing satellites only.
         "MEDI" stands for median of the centre's satellite RMS.
         "MD"
         Units: mm.

Table 3.1537.0   GPS week: 1537   Day: 0   MJD: 55003.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    2  ---  ---  ---  ---   35  ---  ---  ---  ---    0 |    38  ---  ---  ---  ---   29  ---  ---  ---  ---    36
   2  |    9   18    9    7   33    7   18   10   12   34    5 |    30   35   28   26   37   29   36   30   32   36    28
   3  |    8    9    8    7   50    4    8   12   13   17    4 |    31   35   35   35   41   35   34   35   35   38    33
   4  |    7   14    7    9   32    5    8    8   16   12    3 |    30   32   29   32   28   28   25   32   32   33    30
   6  |    6    9    7    6   52    4   11   11   10   14    3 |    32   33   34   35   38   36   32   36   39   35    33
   7  |    6   18   11   13   36    6   13   16   10   16    4 |    27   33   28   27   55   26   31   30   29   30    26
   8  |    8   17    8    7   18    7   16   19    8   11    4 |    22   27   25   24   31   23   28   24   28   22    22
   9  |    7   17    9    9   22    5   15   10    7    9    3 |    24   32   33   25   37   28   33   26   32   26    27
  10E |   10   19   13   12   43    4   16   12   25   14    5 |    22   27   26   21   40   20   30   26   32   27    22
  11  |    8   16    8   14   57    6   20   14   11   21    5 |    35   48   43   43   49   41   52   36   38   33    38
  12  |    7   27   10    9   33    6   21   11   10   13    5 |    27   41   31   23   32   28   37   28   31   25    27
  13  |    8   15   12    9   34    6   21   18    9   16    5 |    25   32   28   27   45   26   35   28   32   29    26
  14  |    8   22   11    7   27    4   14   11    9   14    4 |    29   39   36   32   43   33   38   34   39   37    34
  15  |    6   23   13    9   36    5   17   14    8   16    4 |    29   38   32   27   47   31   35   30   35   32    29
  16  |    7   15    9    9   35    5   22   12    9   12    4 |    22   32   31   23   34   26   36   24   33   25    25
  17  |   11   15    9   20   21    9   14   15   14   22    5 |    29   31   31   39   37   31   33   32   33   37    29
  18E |    7   18   11    9   27    4   21   12    8   13    4 |    18   28   28   18   27   21   31   23   29   25    21
  19  |    6   10    8    8   47    3   15   14   13   17    4 |    31   35   39   32   46   33   40   29   30   37    32
  20E |    5   15   10   11   38    5   16   11    7   11    4 |    24   31   30   24   37   25   33   24   26   21    24
  21  |    7   17   13    8   43    6   18   14   11   19    4 |    20   28   26   20   48   22   32   27   28   25    22
  22E |    6   13    9    6   32    4   15   12    8    8    3 |    23   29   28   24   31   26   33   27   35   27    27
  23  |    6   17    9   10   36    6   20   13    9   18    4 |    27   34   32   29   50   29   37   26   35   29    28
  24  |    7   13   10    5   32    4    9   13    8   12    3 |    34   33   43   32   36   35   35   38   37   31    35
  25  |    7   14    8    7   19    5   13   15    4   22    4 |    28   36   31   29  357   30   27   31   32   36    30
  26  |    6   12   10    6   22    5   11   12    8    9    3 |    28   29   34   26   34   29   35   28   36   29    29
  27  |    7   17    9    7   27    4   13    9    7   11    3 |    26   31   33   26   45   28   32   27   29   28    27
  28  |   10   18   15    9   32    8   19   15   11   13    5 |    23   30   24   22   43   22   30   27   29   23    22
  29  |    8   17   15    8   39    6   17   15   10   32    5 |    29   37   40   33   38   34   39   34   33   47    33
  30  |    6   16    9    8   36    7   14   12   10   26    4 |    22   31   31   23   42   26   32   27   28   42    25
  31  |    7   18   11    7   28    6   14   14   15   17    4 |    24   33   32   28   47   30   34   30   38   34    28
 X32E |    8   20    8   11   45    9  ---   18   19   12    5 |    32   35   35   36   56   34  ---   35   41   35    33
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    7   17   10    9   35    5   16   13   11   17      |T   27   33   31   28   51   28   33   29   32   31    28
 WRMS |    7   17   10    9   32    5   15   13    7   16      |NE  27   32   32   27   39   29   33   30   33   31    28
 MEDI |    7   17    9    8   33    5   15   12   10   14      |MD  27   32   31   27   40   29   33   28   32   30    28

Table 3.1537.1   GPS week: 1537   Day: 1   MJD: 55004.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   18  ---  ---  ---  ---   20  ---   16   19  ---   13 |    32  ---  ---  ---  ---   26  ---   25   23  ---    28
   2  |    8   16    8    8   38    6   18    8   18   32    5 |    17   22   22   18   27   20   24   19   25   31    17
   3  |    6    9    4    6   51    5   10   10   10   16    3 |    32   34   29   32   47   33   32   32   34   34    31
   4  |    8   10    7    5   50    4   11    8   16    9    3 |    21   22   25   23   27   22   17   21   23   24    20
   6  |    6    9    6    5   34    4   11   10    9   14    3 |    27   28   22   28   28   26   22   28   32   24    26
   7M |    6   17    9   11   52    6   16   12   14   15    4 |    26   33   28   24   52   26   32   25   29   21    24
   8  |    7   16    5    7   25    7   15   15   13   11    4 |    14   23   19   15   28   17   22   19   22   17    15
   9  |    6   17    9    7   17    6   14    9    9   11    3 |    20   29   23   22   34   21   29   23   23   23    21
  10E |   10   19   10    9   60    7   14   14   21   16    5 |    16   28   23   25   35   24   27   19   31   23    19
  11M |    7   12    7    8   41    5   17   13   13   21    4 |    26   38   31   29   44   30   38   28   32   18    27
  12  |   10   27   13   14   48    9   23   10   11   19    5 |    24   37   28   27   32   25   33   25   32   22    24
  13M |    8   13   11    8   40    8   19   13    8   15    4 |    19   30   23   17   41   21   30   18   18   17    17
  14M |    7   22   13    9   33    4   18   15   12   20    5 |    23   34   29   22   36   22   29   22   24   28    22
  15  |    7   18    8   16   35    5   18   13   12   16    5 |    20   30   23   22   36   23   29   22   21   24    20
  16  |    7   22   10    9   44    6   22   11   13   12    4 |    18   33   21   18   29   19   28   16   26   15    18
  17  |   11   14   12   18   39    5   16   17   19   22    6 |    22   24   23   26   36   19   26   23   24   26    19
  18E |    8   20   11    9   23    4   21    9    8   12    4 |    21   30   28   20   26   20   27   23   24   23    21
  19M |    7   11    7    7   48    5   14   19   12   24    4 |    20   28   27   22   35   23   29   23   18   30    21
  20E |    8   19   11    9   36    5   16   11   10   12    4 |    21   33   24   20   33   21   30   16   19   14    19
  21  |    7   15   12    9   39    5   19   12    9   20    4 |    17   24   18   18   40   16   27   19   24   17    17
  22E |    7   16    8    9   26    5   14   10    8   12    3 |    19   26   23   18   34   17   22   21   21   19    18
  23M |    7   17   10   10   46    6   22   12   12   19    5 |    24   37   28   24   39   26   34   25   27   24    24
  24  |    6   16    9    6   29    5   12   13   12   12    4 |    22   24   27   25   27   23   27   24   28   19    22
  25M |    9   14    7    8   25    7   15   10   11   22    4 |    30   40   37   30  465   34   33   31   32   34    31
  26  |    7   11   12    7   26    4   13   14    9    9    3 |    19   22   25   20   30   20   24   25   22   23    20
  27  |    5   16    7    8   24    6   13    8   10   11    3 |    20   28   22   25   33   22   28   23   24   22    21
  28  |    7   15    8    8   39    8   17   11   15   12    4 |    19   26   23   18   34   21   24   24   32   21    20
  29  |   11   15    9   11   29    6   18   13    9   34    5 |    21   27   25   28   28   24   28   25   27   39    23
  30  |    9   16    9    9   38    4   14   14    9   26    4 |    23   32   28   24   40   24   30   25   25   35    24
  31  |    9   17   12    9   42    4   15   11   11   16    4 |    18   31   20   17   48   17   26   18   21   20    17
  32E |    9   21    6   10   52    6   17   15   23   13    5 |    27   39   29   29   31   30   24   29   45   25    28
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   16    9    9   39    6   16   12   13   18      |T   21   29   25   22   49   22   27   23   26   23    21
 WRMS |    8   16    9    9   37    6   15   12    9   18      |NE  20   27   23   22   33   21   26   22   25   24    20
 MEDI |    7   16    9    9   38    5   16   12   12   15      |MD  21   29   24   22   34   22   28   23   24   23    21

Table 3.1537.2   GPS week: 1537   Day: 2   MJD: 55005.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   25  ---  ---  ---  ---   14  ---   20   21  ---   16 |    38  ---  ---  ---  ---   34  ---   27   28  ---    29
   2  |    7   20    8    9   39    6   19   11   10   31    5 |    31   36   32   35   43   32   35   35   33   43    32
   3  |    7   11    8    6   44    4   10    9    5   15    3 |    40   41   38   41   42   39   34   38   39   36    39
   4  |    6   12    8    9   54    4    9   10    7   11    3 |    31   34   36   36   30   34   33   37   28   38    33
   6  |    6    9    9    5   29    4    9   10    5   14    3 |    39   39   37   40   37   39   34   40   38   37    38
   7  |    6   16   10   18   32    5   18   10   12   14    5 |    33   39   37   38   58   35   38   35   36   36    34
   8M |    7   16    7    8   29    8   16    9   11   11    3 |    24   29   29   29   33   28   32   28   30   27    26
   9  |    9   19   11    9   23    5   14    9    7    9    4 |    25   34   31   31   37   27   33   28   29   29    28
  10E |   11   18    9   10   52    4   15   13   18   13    5 |    27   32   31   31   32   29   33   30   36   31    28
  11M |    7   15    8    8   45    3   18    8    9   21    4 |    33   44   38   39   42   37   42   35   39   37    36
  12  |   10   26   11   11   29    6   20    9   11   13    5 |    26   41   30   32   33   30   35   30   32   32    29
  13  |    5   15   10   11   38    5   23   11   11   12    4 |    28   36   34   29   43   29   41   29   27   29    29
  14  |    8   26   11    6   30    4   20    9   11   14    4 |    28   44   32   33   39   32   35   30   34   33    31
  15  |    6   17   13    9   42    4   17   10   11   15    4 |    28   34   34   32   41   30   34   30   29   33    29
  16  |    7   19   10    9   58    4   24    8    8   13    4 |    25   37   28   32   32   28   36   25   26   26    26
  17M |   11   18    9   22   26    5   16   14   14   21    6 |    30   35   32   44   37   34   33   34   38   40    33
  18E |    7   20   11    9   23    4   20    8    9    8    4 |    27   37   33   30   30   30   35   29   34   28    30
  19  |    5   13   10    8   49    5   14    9    7   18    3 |    27   34   35   27   44   30   34   27   28   31    29
  20E |    9   17   10   12   31    5   13   10   11   12    4 |    28   34   30   30   34   27   33   25   27   25    26
  21  |    6   15    8    7   38    4   20   10    8   19    4 |    24   30   27   29   37   27   32   28   30   27    26
  22E |    9   14    9    6   28    5   15    8   11    7    3 |    28   37   30   34   30   32   33   32   36   30    31
  23  |    7   18    8   10   39    4   21   10   10   18    4 |    31   40   34   31   43   30   40   29   28   30    29
  24  |    7   16    7    5   25    1   11    9   11   12    3 |    31   30   33   31   35   30   31   32   35   31    31
  25  |    6   14   10    8   25    3   17   13    9   22    4 |    36   44   43   40  625   38   36   40   40   40    38
  26  |    6   12   10    6   27    4   11   12    8   10    3 |    27   31   33   32   31   28   31   32   30   32    30
  27  |    6   16    7    8   26    4   12    7    8   12    3 |    26   30   30   30   38   27   32   28   31   29    28
  28  |    7   15   11   10   35    5   17   10    9   11    4 |    28   33   27   28   38   28   32   31   32   30    28
  29  |    8   14    9    6   30    5   17    8   13   32    5 |    28   32   35   32   27   30   32   28   31   38    30
  30  |    9   18    7   12   27    6   16    9   12   30    5 |    28   37   33   33   42   32   37   29   29   43    30
  31  |   11   17    9   11   39    4   13   11   13   14    4 |    26   32   30   35   49   31   31   29   36   30    29
  32E |   11   24    7    8   38    4   16   13   19   12    5 |    30   39   35   35   28   32   23   30   40   31    31
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   17    9   10   36    5   17   10   11   17      |T   29   35   32   33   57   31   34   30   32   32    30
 WRMS |    7   17    9   10   36    5   16   10    7   19      |NE  29   33   32   33   36   30   32   31   31   32    30
 MEDI |    7   16    9    9   31    4   16   10   11   13      |MD  28   35   33   32   37   30   33   30   32   31    30

Table 3.1537.3   GPS week: 1537   Day: 3   MJD: 55006.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |    2  ---  ---  ---  ---   37  ---  ---  ---  ---    0 |    31  ---  ---  ---  ---   34  ---  ---  ---  ---    32
   2  |    8   20   10    9   33    5   19   10   15   32    5 |    24   28   23   20   27   21   27   26   29   32    23
   3  |    6   11    7    6   45    3   10    4    8   15    3 |    35   33   38   37   50   36   36   37   36   37    35
   4  |    8   14    7   10   62    6   10    9   15   11    4 |    27   25   28   29   37   24   21   28   31   28    26
   6  |    6   10    6    6   35    4   13    5    7   15    3 |    27   25   28   27   22   26   22   27   30   23    25
   7  |    5   16    7   16   29    4   14    7   12   13    4 |    23   26   25   26   49   22   28   21   25   20    21
   8  |    8   19    7    9   20    5   19    6   11   10    4 |    18   27   22   22   31   18   27   18   27   17    19
   9  |    8   17    7    8   22    4   14    9    9   12    3 |    19   28   19   21   28   19   27   17   22   18    19
  10E |   13   22   12   12   57    4   16   10   21   16    5 |    19   28   24   23   32   20   26   21   22   24    18
  11  |    7   14   10    9   75    5   17    5   13   18    4 |    29   36   37   37   50   32   39   29   26   31    30
  12  |   11   26    8    9   28    7   18    7    9   13    4 |    26   37   21   21   29   22   30   25   25   20    23
  13  |    6   16    7    8   32    5   20    8   10   11    3 |    20   29   25   22   46   21   30   21   25   22    21
  14  |    8   20   13    8   23    4   17    7   13   13    4 |    26   35   31   31   33   28   33   26   35   28    29
  15  |    5   17   10   13   35    5   22    9   14   15    4 |    20   30   23   24   45   22   31   20   23   24    21
  16  |    7   23   10   11   45    4   24    7   12   16    4 |    22   36   22   20   38   22   35   18   29   19    21
  17  |    8   20   11   14   25    5   18    8   11   21    5 |    24   29   24   33   36   25   27   24   27   28    24
  18E |    7   20    9    9   22    5   17    5   10    8    3 |    22   28   24   21   36   20   28   20   28   20    21
  19  |    7   14   11    8   46    6   17    6   10   20    4 |    26   30   29   25   48   26   32   25   31   29    26
  20E |    7   20   14   12   24    5   17    5   13   12    4 |    22   29   28   23   35   23   29   21   23   19    22
  21  |    9   19    9    8   44    4   21    4    6   19    4 |    20   25   19   21   35   19   29   19   25   18    19
  22E |    9   16    7    5   31    5   14    5   10    8    3 |    25   28   23   23   35   23   28   22   31   21    24
  23  |    6   21   11   11   28    4   22    7    6   20    4 |    19   31   26   21   46   21   30   19   23   22    20
  24  |    8   14   10    6   28    4   11    8    9   11    3 |    28   27   33   30   32   29   28   25   29   24    27
  25  |    7   15    8    7   17    5   16   11   12   22    4 |    28   35   27   30  818   30   33   23   31   30    27
  26  |    6   14   10    9   28    5   12   11    7    8    3 |    21   20   17   20   34   20   25   18   20   16    18
  27  |    7   22    6    7   23    4   13    7    9   12    3 |    20   32   20   22   35   20   25   17   21   19    19
  28  |    9   17    9    9   52    4   20    7    9   14    4 |    20   26   17   19   43   17   24   19   24   15    18
  29  |    7   17   14    8   38    7   21    8   11   31    5 |    21   28   26   24   37   25   32   19   22   31    21
  30  |    8   21    7   12   38    5   17    7   12   29    5 |    28   33   29   32   42   28   30   27   32   39    28
  31  |    8   21    8    9   34    5   16    7   11   12    4 |    20   31   25   22   43   22   28   21   26   23    21
  32E |   11   26   10   11   57    5   15   11   26   10    5 |    25   28   25   28   44   22   19   22   31   22    22
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    8   18    9   10   38    5   17    8   12   17      |T   23   29   25   25   63   23   28   22   26   23    23
 WRMS |    8   18    9   10   34    5   16    7    8   19      |NE  23   28   24   24   36   23   27   22   26   23    22
 MEDI |    7   17    9    9   32    5   17    7   11   13      |MD  23   28   25   23   36   22   28   21   26   22    22

Table 3.1537.4   GPS week: 1537   Day: 4   MJD: 55007.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   13  ---  ---  ---  ---   15  ---   10   17  ---    9 |    25  ---  ---  ---  ---   33  ---   20   30  ---    21
   2  |    9   17    9    7   41    6   17   10   14   33    5 |    19   25   19   20   25   23   28   23   25   33    20
   3  |    7   14    7    6   28    5    9    5    9   18    3 |    23   21   19   26   27   21   19   21   24   18    20
   4  |   10   15    7    7   46    5   10    6   13   12    3 |    22   25   22   24   29   24   19   26   28   30    24
   6  |    7   12    6    6   29    5   10    7    6   17    3 |    24   20   21   28   17   22   19   25   28   22    23
   7  |    9   19    9   13   40    4   14    9   12   14    4 |    23   32   27   27   45   24   31   28   32   29    25
   8  |    9   18    6    8   21    5   16   13   12   13    4 |    15   26   20   20   28   20   24   25   22   25    19
   9  |    9   17    9   10   20    3   14    8   13   13    4 |    10   23   15   15   25   15   24   14   18   20    13
  10E |   13   23   10   12   44    6   16   12   19   18    5 |    17   28   22   24   45   23   27   21   26   24    19
  11  |    7   16    8    8   63    5   16    5   11   18    4 |    22   31   28   27   36   23   34   21   23   24    23
  12  |   13   26    9    9   51    6   20    9    6   15    4 |    25   35   24   22   33   24   32   29   30   27    25
  13  |    5   19    9    7   29    6   26   11   10   12    4 |    12   30   17   18   40   17   31   18   18   19    16
  14  |    9   19   11    6   33    4   14    6    9   10    3 |    16   26   20   20   38   17   24   15   21   19    17
  15  |    5   20   10    9   29    5   21    8   12   15    4 |    11   27   17   20   32   16   27   14   18   22    14
  16  |    7   22    9    9   44    4   24    7   14   17    4 |    16   28   17   16   27   18   31   16   22   18    17
  17  |   10   18   10   14   18    5   21   11   13   22    5 |    18   24   21   26   24   17   21   22   22   27    19
  18E |    9   26   10    9   31    3   17    8   11    8    4 |    27   39   28   28   30   27   36   28   29   27    28
  19  |    7   14    8    7   38    6   15    8    8   22    4 |    30   30   28   31   36   26   32   26   30   28    28
  20E |    8   21    7    9   28    4   11    4   12   11    3 |    17   28   21   19   35   18   26   17   26   18    18
  21  |    9   18    7   10   56    3   19    6   11   21    4 |    20   26   19   18   57   18   29   20   24   19    20
  22E |   10   14   10    7   27    4   14    4    8    6    3 |    15   21   19   17   26   14   24   13   18   13    15
  23  |    7   22    8    9   34    4   19    7    8   20    4 |    13   30   19   18   38   15   29   14   18   21    15
  24  |   11   17    8    5   35    3   11    8    7   10    3 |    20   22   24   20   28   20   23   20   23   20    21
 X25  |   10   17    6    9 4979    6  ---   12   13   25    5 |    22   29   26   25 9999   25  ---   25   28   35    23
  26  |    8   13   11    8   24    2   11   10   10    8    3 |    10   18   17   13   26   13   20   15   17   15    13
  27  |    9   18    9    9   22    4   12    7   13   14    4 |    13   23   13   17   26   15   22   13   20   18    13
  28  |    9   18   10    7   41    5   21    7   11   19    4 |    20   28   21   25   34   21   28   23   25   29    22
  29  |   12   17   14   10   42    5   18   11    7   31    5 |    18   27   24   22   35   22   28   21   25   33    22
  30E |   12   20   11   11   43    5   18    8   11   33    5 |    39   50   44   41   61   41   49   42   40   54    42
  31  |   11   21    9    8   45    7   15    7   19   12    4 |    12   28   19   17   48   16   25   15   24   16    15
  32E |   11   20    6    9   37    7   16   11   24   10    5 |    18   17   16   19   33   18   18   19   37   16    17
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   19    9    9   37    5   16    8   12   18      |T   19   27   21   22   33   20   26   20   24   23    20
 WRMS |    9   19    9    9   35    5   15    7    9   19      |NE  17   24   19   20   31   18   24   19   22   22    18
 MEDI |    9   18    9    9   35    5   16    8   11   15      |MD  18   27   20   20   33   20   27   21   24   22    20

Table 3.1537.5   GPS week: 1537   Day: 5   MJD: 55008.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1  |   29  ---  ---  ---  ---   15  ---   17   16  ---   15 |    33  ---  ---  ---  ---   28  ---   26   30  ---    25
   2  |    9   16    6    7   40    3   19   10   16   34    5 |    11   19   11   15   28   11   20   16   17   29    12
   3  |   10   12    7    7   30    5   10    7    7   22    3 |    24   21   24   22   24   21   23   28   26   24    23
   4  |    8   11    7    5   45    5   10    7   10   14    3 |    20   20   23   23   18   19   17   23   22   27    21
   6  |   10   10    7    6   28    5   10    8    7   19    3 |    16   12   17   18   24   14   13   22   17   18    16
   7  |    7   16   10   14   40    5   15    7   11   15    4 |    22   29   27   23   40   20   28   23   26   19    22
   8  |    8   16    7   11   27    4   17   20   14   13    5 |    16   24   18   19   23   15   23   28   25   20    18
   9  |    8   19    5   10   18    4   15    6   11   14    4 |    10   22   15   18   28   12   19   14   20   16    13
  10E |   14   19   12   11   53    6   19   13   20   20    5 |    11   25   21   23   46   19   23   21   25   27    17
  11  |    7   13    8    8   65    3   17    4   10   20    4 |    17   31   26   25   37   22   33   18   21   21    20
  12  |   11   26   11   11   47    6   17    9   12   17    5 |    17   31   17   16   33   15   25   21   18   23    17
  13  |    5   17    9    7   33    6   21    7   11   11    4 |    14   29   18   19   40   15   29   17   19   20    16
  14  |    7   21    9    5   26    5   19    5   14   10    4 |    18   30   22   20   29   17   26   19   19   21    19
  15  |   10   16   10   10   35    6   19    9   14   15    4 |    13   24   17   16   38   14   23   11   15   18    12
  16  |    8   24    8    9   60    6   22    5   14   22    5 |    13   26   19   12   33   14   27   13   19   15    14
  17  |   12   20    8   17   31    5   26   16   14   22    6 |    16   22   16   28   33   14   24   24   18   25    18
  18E |    8   21    8    8   29    3   18    6   12   10    4 |    22   34   27   25   32   20   32   24   24   22    23
  19  |    8   14    7    8   36    3   15   10    8   24    4 |    24   29   23   23   27   24   29   24   26   27    23
  20E |    7   20   11   13   36    4   14    8   11   11    4 |    14   25   20   18   34   15   24   15   18   13    15
  21  |    9   17    6    6   28    3   18    7   10   21    4 |    15   22   15   15   25   11   25   14   17   16    14
  22E |   10   15    6    4   33    4   13    4   10    7    3 |    14   20   15   14   30    9   21   14   17   12    13
  23  |    6   21   11    9   33    4   21   11   10   20    4 |    13   29   16   15   36   13   26   12   16   21    13
  24  |    8   12    6    6   32    4    9    7    9   13    3 |    18   21   24   17   26   18   21   18   19   15    18
 X25  |    9   21   13   12  ---    8  ---    8   12  ---    5 |    18   29   24   19  ---   17  ---   16   25  ---    18
  26  |    7   13    9    7   24    4   14    9   13    7    3 |     8   15   14    9   25    8   17   14   11   12     9
  27  |    8   17    6    7   20    4   12    6    8   16    3 |    11   21   14   15   30   12   19   11   20   14    12
  28  |    8   18    9    7   42    7   24   14   11   18    5 |    17   23   16   19   34   14   25   22   23   24    18
  29  |   12   18   12    9   31    5   18   13    9   30    5 |    13   21   18   15   27   14   22   14   15   27    14
  30E |   12   22    9    8   43    5   19    9   12   31    5 |    31   37   32   31   44   32   37   34   31   48    32
  31  |   10   21    8    8   37    5   17    6   12   12    4 |     9   25   16   14   38    9   23   11   14   10    11
  32E |   10   47    9    9   56    5   18   14   22   14    6 |    20   50   17   21   34   19   18   19   38   19    20
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |    9   19    8    9   38    5   17   10   12   18      |T   16   25   19   18   31   16   23   18   21   20    17
 WRMS |    9   18    8    9   36    5   16    8    9   18      |NE  14   20   17   16   28   13   21   16   18   18    14
 MEDI |    8   17    8    8   33    5   17    8   11   16      |MD  16   24   18   18   32   15   23   18   19   20    17

Table 3.1537.6   GPS week: 1537   Day: 6   MJD: 55009.000                            

        Weighted Average                                            Orbit Dynamics (7 days)
 PRN  |  cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio  IGS |   cod  emr  esa  gfz  grg  igr  jpl  mit  ngs  sio   IGS
------+--------------------------------------------------------+---------------------------------------------------------
  X1E |   18  ---  ---  ---  ---   20  ---   15   33  ---   15 |    45  ---  ---  ---  ---   61  ---   51   67  ---    51
   2  |    9   14    8    5   32    4   16   11   14   37    5 |    25   25   23   25   27   23   28   28   27   40    24
   3  |   11   13    9   12   50    6   11   11   15   22    4 |    27   24   26   31   31   25   21   32   26   28    26
   4  |    9   13    9    6   40    5   11    9   19   17    4 |    29   28   30   30   25   26   21   30   28   34    27
   6  |   10   13    8   12   40    7   12   13   15   20    4 |    27   23   28   34   23   26   22   35   27   30    27
   7  |    6   19   11   12   40    3   19    6   18   14    5 |    23   30   24   24   54   22   32   21   23   23    23
   8  |    8   16    7    9   30    3   13   25   17   13    5 |    20   27   21   26   30   20   26   27   21   22    21
   9  |   12   17    7    9   25    5   13    9   16   14    4 |    22   25   23   23   31   18   27   23   25   23    22
  10E |   17   23    9    9   49    5   17   15   28   22    6 |    25   27   25   21   46   21   25   26   25   28    21
  11  |    9   14    7    9   62    5   16    8   12   20    4 |    28   34   33   36   43   30   35   29   29   32    29
  12E |   24   26    9   11   40   10   23   13   15   16    6 |    42   47   35   34   55   29   42   30   36   29    34
  13  |    5   16   12   12   31    4   22    8   16   12    5 |    23   29   25   25   44   21   33   21   22   20    22
  14  |    9   23   11    8   25    5   17    7   19   10    4 |    26   36   30   30   44   27   33   26   28   28    28
  15  |    8   19    9   14   37    4   16   11   16   16    5 |    22   28   22   24   41   21   28   20   22   25    20
  16  |    7   24    7   14   38    6   22    8   13   20    5 |    18   32   18   19   31   16   29   16   20   16    17
  17  |   12   22   10   15   25    5   20   21   12   22    6 |    25   31   28   37   32   25   31   32   29   33    27
  18E |    9   20   12   10   27    5   19   11   12   13    5 |    26   32   34   26   42   24   34   24   28   24    26
  19  |    8   15    7   11   35    4   16   11   13   26    5 |    45   45   45   44   54   42   48   41   44   41    44
  20E |   12   22   10   12   34    7   13    7   14   22    5 |    21   32   24   23   35   22   29   22   23   24    22
  21  |    8   18    6    9   33    6   19    8   11   21    4 |    21   26   18   20   43   17   30   19   20   16    17
  22E |   10   14    7    8   41    4   13    9   10   10    3 |    21   26   23   24   44   20   30   20   24   19    21
  23  |    8   21   13   17   25    3   24   12   11   20    5 |    21   32   26   25   38   20   33   23   26   24    22
  24  |   10   15    7    5   27    4   10   11   10   14    3 |    28   25   29   29   34   26   24   27   28   24    26
 X25  |   11   18   14   17  ---   16  ---   10   16  ---    6 |    23   27   23   31  ---   26  ---   21   27  ---    23
  26  |    8   13   10    7   23    3   10   10   14    9    4 |    21   22   21   21   24   16   23   20   19   20    19
  27  |    8   13    8    8   33    4   12    6   14   15    3 |    23   23   23   24   31   20   25   21   23   24    22
  28  |    7   20   10   10   26    5   22   18   19   20    5 |    20   27   21   20   29   15   26   22   19   20    18
  29  |   10   18    8   10   39    6   17   14    7   29    5 |    23   32   26   25   43   23   31   22   25   32    24
  30E |   13   22   10   11   50    5   18   12   17   39    6 |    51   55   48   47   64   46   56   49   46   55    48
  31  |   10   21    8   14   38    5   18    8   15   12    5 |    21   31   21   24   44   18   30   18   25   19    20
  32E |   13   28    8   12   54    6   17   14   20   17    6 |    27   34   26   29   43   25   18   25   37   22    25
------+--------------------------------------------------------+---------------------------------------------------------
 RMS  |   11   19    9   11   37    5   17   12   15   20      |T   26   30   26   27   38   24   30   26   28   26    25
 WRMS |    9   19    9   11   36    5   16   10   15   19      |NE  23   26   23   24   32   20   26   23   23   25    22
 MEDI |    9   18    9   10   35    5   17   11   15   17      |MD  23   28   25   25   41   23   29   24   26   24    23



Table 4: Precise Navigation Summary.

         Weekly station RMS w.r.t. the estimated coordinates for the Latitude,
         Longitude and Height components.  See Table 5 for the daily summary.

         CLK  - Satellite clocks used.
         EPO  - Mean number of satellite clock epochs available in the daily
                solutions.
         Units: mm.

Table 4.1537   GPS week: 1537   MJD: 55003.0-55009.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2953 |U    8     8    22 |U    8    15    40 |U    7     7    18 |
emr | emr 2870 |    11    11    31 |    17    21    96 |U    7     9    22 |
esa | esa 2880 |     8     8    27 |U    8    14    36 |     7     6    18 |
gfz | gfz 2859 |U    9     8    28 |U   15    25    80 |     8     7    18 |
grg | grg 2852 |    10    10    25 |U   10    16    40 |     9     8    23 |
igr | igr 2871 |     8     8    23 |     7    15    39 |     7     7    17 |
igs | igs 2848 |     9     9    24 |     8    14    44 |     7     7    17 |
jpl | jpl 2816 |U    9     9    25 |U    9    18    48 |U    7     7    19 |
mit | mit 2948 |U    8     9    25 |U   16    32    97 |U    8     8    20 |



Table 5: Daily Precise Navigation Summary using the corresponding Centre orbit 
         positions and satellite clock corrections at 15 min intervals.

         Each line gives the daily station RMS w.r.t. the estimated coordinates 
         for the Latitude, Longitude and Height components.
        
         CLK  - Satellite clocks used.
         EPO  - Number of satellite clock epochs available for that day.
         Units: mm.

Table 5.1537.0   GPS week: 1537   Day: 0   MJD: 55003.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2966 |     7     8    17 |     6     9    27 |     5     6    21 |
emr | emr 2872 |    12    10    19 |    15    13    93 |     7     8    22 |
esa | esa 2880 |     8     8    19 |     6     8    29 |     5     5    21 |
gfz | gfz 2861 |     8     9    19 |    14    23    68 |     5     5    19 |
grg | grg 2880 |     9    12    24 |     9     8    37 |     7     6    22 |
igr | igr 2879 |     7     9    17 |     5    11    30 |     5     5    19 |
igs | igs 2876 |     8     9    16 |     7    10    36 |     5     5    20 |
jpl | jpl 2780 |     9    10    21 |     6    10    29 |     6     6    21 |
mit | mit 2880 |    10    14    31 |    11    16    78 |    10     9    18 |

Table 5.1537.1   GPS week: 1537   Day: 1   MJD: 55004.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2962 |     7     8    21 |     6    12    26 |     5     6    15 |
emr | emr 2872 |    11    10    32 |    14    14   103 |     6     9    20 |
esa | esa 2880 |     8     8    24 |     6     8    27 |     6     6    16 |
gfz | gfz 2860 |     8     8    23 |    14    22    77 |     6     8    16 |
grg | grg 2880 |     9     9    22 |     8    11    40 |     7     9    22 |
igr | igr 2875 |     8     9    22 |     5    10    32 |     5     7    15 |
igs | igs 2874 |     8     8    22 |     5     9    30 |     5     6    15 |
jpl | jpl 2870 |     8     8    24 |     8    12    49 |     5     8    18 |
mit | mit 2976 |     9     8    24 |    16    21   107 |     7     6    20 |

Table 5.1537.2   GPS week: 1537   Day: 2   MJD: 55005.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2943 |     7     5    17 |     7    12    29 |     8     7    19 |
emr | emr 2872 |    11     9    24 |    15    20    91 |     8     9    19 |
esa | esa 2880 |     7     5    18 |     5    10    21 |     9     7    18 |
gfz | gfz 2860 |     8     6    24 |    12    19    66 |     8     7    16 |
grg | grg 2880 |     9     9    18 |     9    15    40 |    10     9    22 |
igr | igr 2876 |     8     5    18 |     6    14    32 |     8     7    15 |
igs | igs 2783 |     7     5    16 |     6    13    31 |     7     7    14 |
jpl | jpl 2871 |     8     6    18 |     6    15    33 |     8     8    17 |
mit | mit 2976 |     7     5    16 |    11    17    66 |     8     7    16 |

Table 5.1537.3   GPS week: 1537   Day: 3   MJD: 55006.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2930 |     7     7    17 |     5     7    41 |    10     7    23 |
emr | emr 2872 |    10    11    19 |    15    13    97 |     7    10    26 |
esa | esa 2880 |     9     8    27 |     5     8    34 |     8     7    22 |
gfz | gfz 2860 |     7     6    19 |    14    16    89 |     9     7    20 |
grg | grg 2880 |     8     7    22 |     8    12    47 |    10     7    24 |
igr | igr 2878 |     7     7    17 |     4     8    43 |     9     7    20 |
igs | igs 2878 |     9     8    30 |     5     9    43 |     9     7    21 |
jpl | jpl 2872 |     7     9    20 |     9    12    57 |     8     8    20 |
mit | mit 2880 |     7     5    21 |    12    14    81 |     9     7    21 |

Table 5.1537.4   GPS week: 1537   Day: 4   MJD: 55007.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2964 |     7     7    23 |     6    10    27 |     6     7    16 |
emr | emr 2872 |    10    13    31 |    15    15    97 |     8     9    21 |
esa | esa 2880 |     7     7    24 |     5     8    23 |     6     7    18 |
gfz | gfz 2860 |     7     9    26 |    15    22    78 |     7     7    19 |
igr | igr 2878 |     7     7    23 |     6    10    34 |     6     8    17 |
igs | igs 2923 |     7     7    25 |     6    11    38 |     6     8    17 |
jpl | jpl 2776 |     9     8    30 |     8    13    35 |     6     7    19 |
mit | mit 2976 |     8     7    26 |    11    13    64 |     8    11    22 |

Table 5.1537.5   GPS week: 1537   Day: 5   MJD: 55008.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2953 |    10    12    32 |    25    43   103 |     8     6    17 |
emr | emr 2868 |    15    13    43 |    28    44   106 |     9     8    25 |
esa | esa 2880 |    12    12    36 |    23    43    90 |     8     7    18 |
gfz | gfz 2855 |    12    11    37 |    24    41   104 |    10     7    19 |
grg | grg 2784 |    13    12    39 |    16    34    48 |    10     8    25 |
igr | igr 2835 |    11    13    37 |    15    36    66 |     9     7    19 |
igs | igs 2775 |    11    12    35 |    18    35   106 |     9     7    19 |
jpl | jpl 2774 |    13    13    40 |    21    49    84 |     8     7    23 |
mit | mit 2976 |    11    10    34 |    36   109   207 |    11    11    22 |

Table 5.1537.6   GPS week: 1537   Day: 6   MJD: 55009.0

CENT| CLK EPO  |        BRUS       |        TOW2       |        WILL       |
----+----------+-------------------+-------------------+-------------------+
cod | cod 2953 |     8    11    24 |     6    13    27 |     7     8    16 |
emr | emr 2868 |    12    13    49 |    15    26    83 |     7    11    24 |
esa | esa 2880 |     9    10    44 |     6    12    26 |     7     8    16 |
gfz | gfz 2857 |     9    10    47 |    14    31    79 |     7     7    16 |
grg | grg 2784 |    10    10    26 |    10    16    30 |     9     8    26 |
igr | igr 2879 |     9    10    28 |     7    17    33 |     7     8    15 |
igs | igs 2831 |    10    13    26 |     6    10    27 |     7     8    16 |
jpl | jpl 2771 |     8    11    25 |     8    18    51 |     8     9    16 |
mit | mit 2976 |     7    12    25 |    14    32    79 |     7     7    20 |


Table 6: Earth Orientation Parameters weekly summary.                          
                                                                              
        Weekly mean and standard deviation of Centre ERP, ERP rates and       
        LOD differences with respect to IGS combined values. See Table 7 for  
        the daily summaries.                                                  
                                                                              
        Xpole,Xrt: x pole and x pole rate                          
        Ypole,Yrt: y pole and y pole rate                       
        LOD      : Length Of Day                                               
                                                                              
        AC LOD BIAS    : 21-day mean LOD bias with respect to Bulletin A     
        AC LOD BIAS RMS: RMS of AC LOD BIAS                              
                                                                              
        FLAG: "u" (used), "x" (excluded), "-" (no submission)                 
              for Xpole, Ypole, Xrt, Yrt and LOD                              

Table 6.1537   GPS week: 1537   MJD: 55003.500-55009.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      -8     -37     122     -68     -2 |      -2     27
            |      15      21     117      54      6 |       5
emr   uuuxx |      25       0     -54     360     31 |     -14     43
            |      12      22     135     105     18 |      12
esa   uuuux |     -28     -13    -146      21     -6 |     -17     29
            |      24      24     105     112     37 |       3
gfz   uuuuu |     -15     -15      60     -47     -8 |       7     26
            |      14      17      84      51      5 |       3
grg   xxxxx |     -34      20     109     -51      4 |      -4     26
            |      28      27      92      63     44 |       2
igr   xxxxx |     -12      28     -34     -29      5 |      -8     27
            |      19      17      71      78     10 |       3
irf   xxxxx |       2       0      11      25      4 |      -7     27
            |       7      12      31      40      5 |       5
jpl   uuuuu |     -27     -17      53     -40      6 |      -6     30
            |      33      34      90     132     13 |       7
mit   uuuuu |     -30     -13     120      23     10 |      -2     31
            |      16      20     147      40     11 |       5
ngs   uuuxu |      43      21       4     176     -3 |       0     23
            |      35      72     151     283     14 |       3
sio   uuuuu |     111      96     -49      53      4 |       5     30
            |      16      18     121      61     13 |       3


Table 7.1537.0   GPS week: 1537   Day: 0   MJD: 55003.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |       7      -5     118     -70      2 |      -8     23
emr   uuuxx |      20      12      14     271     23 |     -30     37
esa   uuuux |     -40      20    -208     101    -30 |     -14     28
gfz   uuuuu |      -2       1      52     -49     -9 |       6     21
grg   xxxxx |     -37      68      11     -16     23 |      -3     26
igr   xxxxx |     -35      51    -129    -111     -1 |     -11     23
irf   xxxxx |       1      11      73      19     -2 |     -12     23
jpl   uuuuu |     -45     -69      38     -35     26 |     -16     25
mit   uuuuu |     -27       2     315     -10      1 |      -8     25
ngs   uuuxu |      25     -45    -190     102     -3 |      -1     17
sio   uuuuu |     101     104      99     -31     -6 |       4     26

Table 7.1537.1   GPS week: 1537   Day: 1   MJD: 55004.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |     -21     -21      18     -25      5 |      -9     22
emr   uuuxx |      18     -29     164     209     51 |     -31     37
esa   uuuux |      15       8     -75     107    -48 |     -19     30
gfz   uuuuu |     -31     -24     -91     -32    -12 |       3     18
grg   xxxxx |     -71       4      37     -80    -66 |      -2     27
igr   xxxxx |     -25      28     -70    -129      0 |     -14     22
irf   xxxxx |       2       6      20       7      6 |     -15     22
jpl   uuuuu |     -38     -14     -96    -227     12 |     -14     26
mit   uuuuu |     -31      -5     236      16     16 |     -11     23
ngs   uuuxu |      -6      -5     -74     277     -9 |      -3     16
sio   uuuuu |     119     104      20      43      8 |      -2     19

Table 7.1537.2   GPS week: 1537   Day: 2   MJD: 55005.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      -3     -34     -74    -128     -6 |       1     27
emr   uuuxx |       7     -18      64     275     48 |     -18     45
esa   uuuux |     -18     -16    -163     135    -43 |     -15     26
gfz   uuuuu |     -17      -2       8     -71    -12 |      10     25
grg   xxxxx |     -30      -7      -9    -122    -34 |      -2     27
igr   xxxxx |       8      19      79     -90     -2 |      -8     27
irf   xxxxx |      -7      14       8     -26      6 |      -7     27
jpl   uuuuu |      27      17      74    -182     14 |      -4     30
mit   uuuuu |     -34      11     174      16     21 |      -3     32
ngs   uuuxu |       1     -55    -130    -187    -19 |       4     23
sio   uuuuu |      99     121      81      21     16 |       5     30

Table 7.1537.3   GPS week: 1537   Day: 3   MJD: 55006.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |     -18     -43     126    -109     -9 |       6     27
emr   uuuxx |      43      18    -120     413     43 |      -9     46
esa   uuuux |     -31     -25    -242      75     -7 |     -14     24
gfz   uuuuu |       4     -34      54    -104    -15 |      13     26
grg   xxxxx |     -16       3     187     -69     35 |      -6     27
igr   xxxxx |       4       3       4      25      2 |      -4     26
irf   xxxxx |      -8       0       4      -6     12 |      -2     27
jpl   uuuuu |      -5      34     212     -55      8 |       2     31
mit   uuuuu |     -57      -2     151      12     26 |       3     34
ngs   uuuxu |      61     -13     -44     -91    -14 |       6     23
sio   uuuuu |      87     103     -70      78     20 |       8     33

Table 7.1537.4   GPS week: 1537   Day: 4   MJD: 55007.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |      16     -64     256    -103     -9 |       1     31
emr   uuuxx |      40     -16    -152     467     31 |      -8     46
esa   uuuux |     -30       0    -281     -24      5 |     -20     32
gfz   uuuuu |      -5     -39     137     -76     -6 |       7     30
grg   xxxxx |      16       0     194     -62     -4 |      -5     26
igr   xxxxx |       0      48       0      65      0 |      -7     30
irf   xxxxx |       6       0       4      32      5 |      -6     29
jpl   uuuuu |     -73     -18      68      -4     -5 |      -2     33
mit   uuuuu |     -35     -21     104      57     11 |       0     34
ngs   uuuxu |      74      54     109     262     -5 |       0     28
sio   uuuuu |     112      96     -82      76      8 |       5     33

Table 7.1537.5   GPS week: 1537   Day: 5   MJD: 55008.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |     -21     -33     205     -67      5 |      -1     30
emr   uuuxx |      23       5    -192     446     19 |      -4     47
esa   uuuux |     -30     -26     -57    -152     36 |     -21     32
gfz   uuuuu |     -22       3     112     -51     -2 |       7     30
grg   xxxxx |     -51      40     178     -81      9 |      -5     26
igr   xxxxx |       0      27     -25      15     14 |      -8     30
irf   xxxxx |       6      -5     -18      51      2 |      -5     29
jpl   uuuuu |     -44     -36      37      89    -10 |      -3     33
mit   uuuuu |     -26     -31     -50      93      1 |       1     35
ngs   uuuxu |      72      61     210     193     12 |      -2     28
sio   uuuuu |     118      86    -191     163     -5 |       6     33

Table 7.1537.6   GPS week: 1537   Day: 6   MJD: 55009.500

                                                         AC LOD  AC LOD
CENT  FLAG  |   Xpole   Ypole     Xrt     Yrt    LOD |    BIAS  BIAS RMS
            |   [uas]   [uas]   [uas/d] [uas/d]  [us]|    [us]    [us]
------------+----------------------------------------+------------------
cod   xxxxx |     -18     -59     207      26     -6 |       0     31
emr   uuuxx |      23      31    -158     440      3 |       1     47
esa   uuuux |     -64     -52       2     -98     43 |     -18     33
gfz   uuuuu |     -33     -10     147      57     -2 |       6     30
grg   xxxxx |     -52      32     167      74     66 |      -5     26
igr   xxxxx |     -35      21     -98      23     25 |      -7     30
irf   xxxxx |      13     -22     -17      95     -3 |      -4     29
jpl   uuuuu |     -12     -28      41     136     -6 |      -3     33
mit   uuuuu |      -2     -45     -92     -22     -4 |       2     35
ngs   uuuxu |      70     149     145     679     20 |       0     29
sio   uuuuu |     137      63    -201      20    -16 |       7     34



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